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GB/T 5059.7-2014: Ferromolybdenum -- The determination of carbon content -- Infrared absorption method
Status: Valid GB/T 5059.7: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 5059.7-2014 | English | 169 |
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Ferromolybdenum -- The determination of carbon content -- Infrared absorption method
| Valid |
GB/T 5059.7-2014
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| GB/T 5059.7-1988 | English | 199 |
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Methods for chemical analysis of ferromolybdenum--The infrared absorption method for the determination of carbon content
| Obsolete |
GB/T 5059.7-1988
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PDF similar to GB/T 5059.7-2014
Basic data | Standard ID | GB/T 5059.7-2014 (GB/T5059.7-2014) | | Description (Translated English) | Ferromolybdenum -- The determination of carbon content -- Infrared absorption method | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | H11 | | Classification of International Standard | 77.100 | | Word Count Estimation | 7,786 | | Date of Issue | 6/9/2014 | | Date of Implementation | 1/1/2015 | | Older Standard (superseded by this standard) | GB/T 5059.7-1988 | | Quoted Standard | GB/T 4010 | | Regulation (derived from) | National Standards Bulletin No. 11 of 2014 | | Issuing agency(ies) | General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China | | Summary | This Standard specifies the method of infrared absorption method for the determination of molybdenum iron carbon content. This Standard applies to the determination of molybdenum in the carbon content of the iron. Measuring range (mass fraction): 0. 010% | GB/T 5059.7-2014: Ferromolybdenum -- The determination of carbon content -- Infrared absorption method
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Ferromolybdenum. The determination of carbon content. Infrared absorption method
ICS 77.100
H11
National Standards of People's Republic of China
Replacing GB/T 5059.7-1988
Determination of the carbon content of ferromolybdenum
The infrared absorption method
Issued on. 2014-06-09
2015-01-01 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China released
Foreword
GB/T 5059 "ferro molybdenum" is divided into the following sections.
--- Part 1. Determination of molybdenum iron molybdenum content of lead molybdate gravimetric method, ammonium metavanadate titration and 8-hydroxyquinoline gravimetric method;
--- Part 2. Determination of antimony content ferromolybdenum malachite green spectrophotometry;
--- Part 3. Determination of Fe, Cu, Mo Flame atomic absorption spectrometric method;
--- Part 5. Determination of silicon content ferromolybdenum sulfuric acid dehydration gravimetric method and silicon molybdenum blue spectrophotometric method;
--- Part 6. Determination of phosphorus content of iron molybdenum bismuth phosphomolybdate blue spectrophotometric method and the molybdenum blue spectrophotometric method;
--- Part 7. Determination of carbon content ferromolybdenum The infrared absorption method;
--- Part 9. molybdenum iron sulfur content Infrared absorption method and combustion iodometric method.
This section GB/T 5059 Part 7.
This section drafted in accordance with GB/T 1.1-2009 given rules.
This Part replaces GB/T 5059.7-1988 "Determination of the amount of carbon chemical analysis of ferromolybdenum The infrared absorption method." This portion
GB/T 5059.7-1988 compared to, in addition to editorial changes, the major technical changes are as follows.
--- Increased Chapters 2 and 9 chapters;
--- Increased warning;
--- Sample volume increased from "weighing 0.800 ~ 1.000g" adjusted "Weigh 0.80g sample, accurate to 0.001g".
This part is proposed by the China Iron and Steel Association.
This part of pig iron and ferroalloy by the National Standardization Technical Committee (SAC/TC318) centralized.
This section is drafted. Sinosteel Jilin Ferroalloy Co., Ltd.
The main drafters of this section. Yuan Ping, Gao Lin, in Guiping, high Yumin, Wang Heidi.
This part of the standard replaces the previous editions are.
--- GB/T 5059.7-1988.
Determination of the carbon content of ferromolybdenum
The infrared absorption method
Warning. Use of this section shall be a person experiences regular laboratory work. This section does not indicate that all possible security issues.
Users have the responsibility to take appropriate safety and health practices and to ensure compliance with the conditions relevant national regulations.
1 Scope
GB/T 5059 provisions of this part of the infrared absorption method for determination of carbon content in ferromolybdenum.
This section applies to the determination of carbon content in ferromolybdenum. Measurement range (mass fraction). 0.010% - 0.400%.
2 Normative references
The following documents for the application of this document is essential, dated references, only the dated version suitable for use herein
Member. For undated references, the latest edition (including any amendments) applies to this document.
GB/T 4010 alloy chemical analysis and preparation of samples
Principle 3
The sample is heated in a high frequency induction furnace combustion flow of oxygen, carbon dioxide generated by the oxygen contained in the measuring chamber to the infrared analyzer dioxide
Carbon absorption in a specific wavelength of infrared energy absorbed is proportional to its concentration can change according to the received energy detector can measure the amount of carbon.
4 Reagents and materials
Unless otherwise indicated in the analysis using only recognized as analytical grade reagents and distilled water or its equivalent purity water.
4.1 acetone, carbon residue after evaporation was less than 0.0005%.
4.2 Magnesium perchlorate anhydrous, granular.
4.3 asbestos caustic soda, granular.
4.4 glass wool.
4.5 tungsten particles, the amount of carbon is less than 0.002%, particle size of 0.8mm ~ 1.4mm.
4.6 tin particles, carbon content less than 0.002%, particle size 0.4mm ~ 0.8mm. If necessary with acetone (4.1) to clean the surface, and at room temperature
dry.
4.7 oxygen purity of more than 99.95%, if other levels of oxygen to obtain a low and consistent blank, can also be used.
4.8 Dynamic air, nitrogen or compressed air, which contaminants (oil and water) content of less than 0.5%.
4.9 Ceramic crucible diameter × height. 23mm × 23mm or 25mm × 25mm, and a high temperature above 1200 ℃ burning furnace
4h or burned in oxygen burning to blank the lowest value.
4.10 crucible tongs.
5 instruments and equipment
5.1 Dingtan infrared absorption instrument (sensitivity of 1.0 × 10-6), which means as shown in Figure 1.
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